package ZuoYe17;

import java.util.Scanner;

public class Di7 {
    public static void main(String[] args) {
        System.out.println("请输入字符串");
        Scanner sc=new Scanner(System.in);
        String a="不到最后shourenzu就不做";
        for (int i=0;i<a.length();i++){
            if (a.charAt(i)>=65&&a.charAt(i)<=90||a.charAt(i)>=97&&a.charAt(i)<=122){
                System.out.print(a.charAt(i));
            }
        }


    }

}


